Most applicants who are age 1617 must apply in person using Form DS11. Passports for applicants 16 and older are valid for 10 years.Available for all U.S. Citizens. All children under age 16 must apply for a passport in person with two parents or guardians using Form DS-11. Please complete and print (single sided only) a Passport Application (Form DS-11) prior to your visit. Adult Applicants (16 Years and Older). What are you applying for? Applicants must have been at least 16 years of age when last passport was issued. Prior to your visit please complete and print a Passport Application Form (DS11). Our form wizard will help you and your family know what passport form(s) to use.